Dec 05 16:27:14.861 INFO checking avec-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 16:27:14.862 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 16:27:15.177 INFO [stdout] 2f8371867b656d287d8e11f0a561a858182571faebabb64bcf340f920313f737
Dec 05 16:27:15.181 INFO running `"docker" "start" "-a" "2f8371867b656d287d8e11f0a561a858182571faebabb64bcf340f920313f737"`
Dec 05 16:27:15.818 INFO [stderr] usermod: no changes
Dec 05 16:27:15.849 INFO [stderr]     Checking avec v0.1.0 (/source)
Dec 05 16:27:16.631 INFO [stderr] warning: variable does not need to be mutable
Dec 05 16:27:16.631 INFO [stderr]    --> src/avec.rs:209:17
Dec 05 16:27:16.631 INFO [stderr]     |
Dec 05 16:27:16.631 INFO [stderr] 209 |             let mut data = &mut *self.data.get();
Dec 05 16:27:16.631 INFO [stderr]     |                 ----^^^^
Dec 05 16:27:16.631 INFO [stderr]     |                 |
Dec 05 16:27:16.631 INFO [stderr]     |                 help: remove this `mut`
Dec 05 16:27:16.631 INFO [stderr]     |
Dec 05 16:27:16.631 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 16:27:16.631 INFO [stderr] 
Dec 05 16:27:16.631 INFO [stderr] warning: variable does not need to be mutable
Dec 05 16:27:16.631 INFO [stderr]    --> src/avec.rs:244:17
Dec 05 16:27:16.631 INFO [stderr]     |
Dec 05 16:27:16.631 INFO [stderr] 244 |             let mut data = &mut *self.data.get();
Dec 05 16:27:16.631 INFO [stderr]     |                 ----^^^^
Dec 05 16:27:16.631 INFO [stderr]     |                 |
Dec 05 16:27:16.631 INFO [stderr]     |                 help: remove this `mut`
Dec 05 16:27:16.631 INFO [stderr] 
Dec 05 16:27:16.888 INFO [stderr] warning: variable does not need to be mutable
Dec 05 16:27:16.888 INFO [stderr]    --> src/avec.rs:209:17
Dec 05 16:27:16.888 INFO [stderr]     |
Dec 05 16:27:16.888 INFO [stderr] 209 |             let mut data = &mut *self.data.get();
Dec 05 16:27:16.888 INFO [stderr]     |                 ----^^^^
Dec 05 16:27:16.888 INFO [stderr]     |                 |
Dec 05 16:27:16.888 INFO [stderr]     |                 help: remove this `mut`
Dec 05 16:27:16.888 INFO [stderr]     |
Dec 05 16:27:16.888 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 16:27:16.888 INFO [stderr] 
Dec 05 16:27:16.894 INFO [stderr] warning: variable does not need to be mutable
Dec 05 16:27:16.894 INFO [stderr]    --> src/avec.rs:244:17
Dec 05 16:27:16.894 INFO [stderr]     |
Dec 05 16:27:16.894 INFO [stderr] 244 |             let mut data = &mut *self.data.get();
Dec 05 16:27:16.894 INFO [stderr]     |                 ----^^^^
Dec 05 16:27:16.894 INFO [stderr]     |                 |
Dec 05 16:27:16.894 INFO [stderr]     |                 help: remove this `mut`
Dec 05 16:27:16.894 INFO [stderr] 
Dec 05 16:27:17.836 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
Dec 05 16:27:17.838 INFO [stderr] su: No module specific data is present
Dec 05 16:27:19.191 INFO running `"docker" "inspect" "2f8371867b656d287d8e11f0a561a858182571faebabb64bcf340f920313f737"`
Dec 05 16:27:19.578 INFO running `"docker" "rm" "-f" "2f8371867b656d287d8e11f0a561a858182571faebabb64bcf340f920313f737"`
Dec 05 16:27:19.947 INFO [stdout] 2f8371867b656d287d8e11f0a561a858182571faebabb64bcf340f920313f737